5'-O-DMT-2'-fluoro-N2-isobutyryl-2'-Deoxy-guanosine 3'-CE phosphoramidite

for the following products (2S,3R,4R,5R)-2-(2,2-bis-(4-Methoxyphenyl)-2-phenylethoxy)-4-fluoro-5-(2-isobutyramido-6-oxo-3,6-dihydro-9H-purin-9-yl)tetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphoramidite | 2'-Fluoro-2'-deoxy Guanosine (n-ibu) CED Phosphoramidite | 2'-Fluoro-N2-isobutyryl-5'-O-dmt-2'-deoxyguanosine-3'-ce-phosphoramidite | 5'-O-[bis-(4-Methoxyphenyl)phenylmethyl]-2'-deoxy-2'-fluoro-N-(2-methyl-1-oxopropyl)guanosine 3'-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite] | Dmt-2'fluoro-dg(ib) phosphoramidite and 5'-O-DMT-2'-fluoro-N2-isobutyryl-2'-Deoxy-guanosine 3'-CE phosphoramidite